1. statically-typed JVM-targeted programming language

3. JAVA compatible
JVM Java Script

4. JVM

5. How to make a cup of coffee?

6. A cup of JAVA 7?

7. Not alone…

8. What is that “main stream” language?
Libraries
Tools (IDE?) C#
A lot
Visual Studio Go
So-so
No IDE
Kotlin
All Java
JetBrains Tools

9. Modern language for industry

10. More Traits (interfaces with code) First-class delegation Modules
Generic with proper variance
Extensions (like in C#)
Null safety
Operator overloading …

12. What Kotlin is not NOT A Research project NOT A proprietary language
NOT A Domain language

13. Little hands on

14. Nulls
Can be Null

15. Nulls 2

16. How JAVA is seen from Kotlin?

17. Annotations

18. External annotations

19. Inferring annotations

20. What Buys Me?

21. Jefferson Lab at Newport News

22. HallD

23. Calibrations problem 11 000 channels
Calibration constants values
Physics
2014
2024
...

24. >Command line tools_
CCDB Infrastructure
Map<String, Int> data = calib.Get(“/target/position”)
JAVA
C++
>Command line tools_
Maintain
WEB
Python
CCDB
data = calib.Get(“/target/position”)
calib->Get(data , “/target/position”)
1/12/2019

25. My feelings Language pleasant. IDE is great
Feels like concise updated C#
Mixing JAVA and Kotlin really works
Readability is high when you know language at least a little

26. Kotlin for Web?

27. Web problem 1

28. No abstraction for css and html

29. Bravery stupidity?

31. HTML in Kotlin

32. CSS in Kotlin

33. KARA Framework

34. YES! Kotlin for Android? Jetbrains has Android studio
Kotlin fully works there

35. Spek specification (testing) framework

36. How it works Given – Establish the context of the test, i.e, Arrange
On – Execute the action, i.e. Act
It – Validate the results, i.e. Assert
Test run in IDEA

37. Thank you!
kotlin.jetbrains.com